# A block weighing 70.7 N rests on a plane inclined at 21.6° to the horizontal. The coefficient of the static and kinetic frictions are 0.23 and 0.12 respectively. What is the minimum magnitude of the force F, parallel to the

22,562 questions, page 157-
## physics

A ball launched from ground level lands 2.15 s later on a level field 50 m away from the launch point. Find the magnitude of the initial velocity vector and the angle it is above the horizontal. (Ignore any effects due to air resistance.)

*asked by yelya on August 25, 2011* -
## Physics

A stone is projected upward at an angle of 30 degree to the horizontal from the top of a tower 100m and it hits the ground at a point q. If the initial veloity of projection is 100ms cal the maximum height of the stone above the groud

*asked by Elvis on January 10, 2016* -
## Pre-Calc

How do I determine if there are common factors for x^5+3x^3+5x/4X^4+2x^2, when the leading coefficient of the denominator is greater than that of the numerator, and there is no constant in the numerator - thus making using the roots calculator impossible,

*asked by Mary on October 18, 2013* -
## science

A 0.20 kg object, attached to a spring with spring constant k = 10 N/m, is moving on a horizontal frictionless surface in simple harmonic motion of amplitude of 0.080 m. What is its speed at the instant when its displacement is 0.040 m? (Hint: Use

*asked by Anonymous on July 31, 2011* -
## Physics

Anthony Rizzo hits a baseball in such a way that it leaves his bat traveling at 40.4 m/s at an angle of 26 degrees above the horizontal. When hit, the baseball is 1.2 m above the ground, is in fair territory, and is 127 meters away from a 3.5 m tall fence?

*asked by Chelsea on November 16, 2017* -
## Physics

Rather than rotate completely horizontally, a carousel rotates at an angle of 10° from horizontal, with a constant angular velocity of 1.571 RAD/s. A box is placed 1.5 m from the axis of rotation. What’s the minimum coefficient of static friction so the

*asked by Sara on December 1, 2010* -
## Physics

A small container of water is placed on a carousel inside a microwave oven, at a radius of 13.5 cm from the center. The turntable rotates steadily, turning through one revolution each 6.90 s. What angle does the water surface make with the horizontal? Im

*asked by Michael on September 23, 2015* -
## Physics

A 0.20 m uniform bar has a mass of 0.75 kg and is released from rest in the vertical position, as the drawing shows. The spring is initially unstrained and has a spring constant of . Find the tangential speed with which end A strikes the horizontal

*asked by Samantha Kaur on June 9, 2011* -
## College Physics

Rather than rotate completely horizontally, a carousel rotates at an angle of 10° from horizontal, with a constant angular velocity of 1.571 RAD/s. A box is placed 1.5 m from the axis of rotation. What’s the minimum coefficient of static friction so the

*asked by Sara on December 1, 2010* -
## physics

An oil-drop, that has a mass of 3.5 × 10-15 kg and an excess of 7 electrons, is located between horizontal parallel plates. The plates are separated by a distance of 2.5 cm and have and potential diffeDetermine the magnitude and direction of the

*asked by sam on August 14, 2013* -
## math

A 100 foot vertical tower is to be erected on a side of a hill that makes a 6 degree angle with the horizontal. Find the length of each of the two guy wires that will be anchored 75 feet uphill and downhill from the base of the tower.

*asked by Ash on February 2, 2011* -
## Physics +2

A horizontal force of 600 N pulls two masses 10Kg and 20k lying on a frictionless surface Connected by a light string.what is the tension in the string? Does the answer depend on which mass end the pull is applied?

*asked by sasikanth on August 17, 2013* -
## Math

A 100 foot vertical tower is to be erected on a side of a hill that makes a 6 degree angle with the horizontal. Find the length of each of the two guy wires that will be anchored 75 feet uphill and downhill from the base of the tower.

*asked by Ash on February 2, 2011* -
## Physics

A 0.20 m uniform bar has a mass of 0.75 kg and is released from rest in the vertical position, as the drawing shows. The spring is initially unstrained and has a spring constant of 25.0 N/m. Find the tangential speed with which end A strikes the horizontal

*asked by Samantha Kaur on June 9, 2011* -
## Physics

A 0.20 m uniform bar has a mass of 0.75 kg and is released from rest in the vertical position, as the drawing shows. The spring is initially unstrained and has a spring constant of . Find the tangential speed with which end A strikes the horizontal

*asked by Samantha Kaur on June 9, 2011* -
## Physics

A 0.20 m uniform bar has a mass of 0.75 kg and is released from rest in the vertical position, as the drawing shows. The spring is initially unstrained and has a spring constant of 25.0 N/m. Find the tangential speed with which end A strikes the horizontal

*asked by Samantha Kaur on June 9, 2011* -
## physics

A student fires a rocket at 24 degrees above the horizontal. The 10kg rocket comes out of the gun barrel at 1000 m/s, and accelerates 15 m/s^2 uniformly until it burns out 2 seconds later. It then is acted apon by gravity until it hits the ground. I need

*asked by Kris on November 20, 2014* -
## NEED HELP PHYSICS!!!

An airplane is flying in a horizontal circle at a speed of 117 m/s. The pilot does not want his centrifugal acceleration to exceed 6.8g (that is, to be more than 6.8 times the acceleration of gravity). What is the minimum radius (in meters) of the circular

*asked by baz on April 7, 2015* -
## Science

A 0.5kg cart connected to light spring for which the force constant is 20 Nm on horizontal frictionless air track. Calculate the total energy of the system and the maximum speed of the cart if the amplitude of the motion is 3.0cm

*asked by Anonymous on May 5, 2019* -
## physics

a device for training astronauts and jet fighter pilots is designed to rotate the trainee in a horizontal circle of radius 10 m. if the force felt by the trainee is 7.75 times her own weight, how fast is she rotating? express in both m/s and rev/s

*asked by laura on January 2, 2011* -
## Math- Please Help!!

A 100 foot vertical tower is to be erected on a side of a hill that makes a 6 degree angle with the horizontal. Find the length of each of the two guy wires that will be anchored 75 feet uphill and downhill from the base of the tower.

*asked by Ash on February 2, 2011* -
## math (check my answer?)

Find the equation of a sine function that has a vertical displacement 2 units down, a horizontal phase shift 60 degrees to the right, a period of 30 degrees, a reflection in the y-axis and an amplitude of 3. My attempt at an answer: Y = 3 sin (30x- 60) -2

*asked by stephy on January 22, 2011* -
## physics

captain iplanet measures the magnetic forces on a proton which is vertically falling at 1996 m/s at the equator (take the earth's field to be .4 Gauss horizontal and pointing northward). what force would she measure? Give both force and direction.

*asked by fatih on March 9, 2012* -
## Physics

You are driving south on a highway at 24.0 m/s (approximately 54 mi/h) in a snowstorm. When you last stopped, you noticed that the snow was coming down vertically, but it is passing the windows of the moving car at an angle of 26.6° to the horizontal.

*asked by Stacy on February 7, 2012* -
## PHY

Two snowcats tow a housing unit to a new location at McMurdo Base, Antarctica, as shown in Figure 4-46. The sum of the forces A and B exerted on the unit by the horizontal cables is parallel to the line L, and FA = 4300 N. Determine FB and the magnitude of

*asked by AMI on September 13, 2010* -
## Algebra

Is this correct? Evaluate the exponential equation for three positive values of x, three negative values of x, and at x=0. Show your work. Use the resulting ordered pairs to plot the graph; y=(1/4)^x+3 x = -1, y = 7 x = -0.5, y = 5 x = 0, y = 4 x = 0.5, y

*asked by Abby Clark on June 13, 2010* -
## phy

Two snowcats tow a housing unit to a new location at McMurdo Base, Antarctica, as shown in Figure 4-46. The sum of the forces A and B exerted on the unit by the horizontal cables is parallel to the line L, and FA = 4300 N. Determine FB and the magnitude of

*asked by ami on September 12, 2010* -
## Physics

A punter drops a .43 kg football from rest vertically 1 meter down onto his foot. The ball leaves his foot with a speed of 18m/s at an angle of 55* above the horizontal. What is the impulse delivered by the foot (magnitude and direction)?

*asked by Rob on December 2, 2015* -
## Physics

a 24 gramme bullet travelling at 198m/s buries itself in a 6.5kg pendulum hanging on a 2.2 m length of string, which makes the pendulum swing in an arc. determine the horizontal component of the displacement of the pendulum.

*asked by Anonymous on March 17, 2016* -
## physics

a ball of weight 200 grams,is tied to the end of a cord and whirled in a horizontal circle of radius 0.6 m.if the ball makes five complete revolutions in 2 seconds,what will be the linear speed of the ball?

*asked by komal on December 31, 2014* -
## physics

There are two horizontal forces on the 2.0 kg box in the overhead view of Fig. 5-39 but only one (of magnitude F1 = 20 N) is shown. The box moves along the x axis. For each of the following values for the acceleration ax of the box, find the second force

*asked by beav on February 21, 2010* -
## physics

a 1250 kg car, rolling at 40km/h along a flat frictionless surface strikes a horizontal coiled spring and is brought to rest in a distance of 2.5m. Assuming there is no friction, what is the spring constant of the spring?

*asked by amanda on April 29, 2012* -
## physics

a ball of weight 200 grams,is tied to the end of a cord and whirled in a horizontal circle of radius 0.6 m.if the ball makes five complete revolutions in 2 seconds,what will be the linear speed of the ball?

*asked by sannan on May 30, 2017* -
## PHysics

A baseball pitcher throws a ball horizontally under negligible air resistance. The ball falls 83cm in travelling 18.4 m to the home plate. Determine the ball's initial horizontal speed.

*asked by Eddie on February 22, 2009* -
## physics

A skier squats low and races down an 11◦ ski slope. During a 3 s interval, the skier accelerates at 2.7 m/s^2 . What is the horizontal component of the skier’s acceleration (perpendicular to the direction of free fall)? Answer in units of m/s^2.

*asked by Sarah on October 8, 2012* -
## Physics

A woman in a car on a level road sees an airplane traveling in the same direction that is climbing at an angle of 30 degrees above the horizontal. By driving 110 km/h she is able to stay directly below the airplane. What is the airplane's velocity?

*asked by April Hanna on October 12, 2016* -
## physics

A shopper in a supermarket pushes a loaded cart with a horizontal force of 13 N. The cart has a mass of 36 kg. The acceleration of gravity is 9.8 m/s 2 . Disregarding friction, how far will the cart move in 4.5 s, starting from rest? Answer in units of m

*asked by Anonymous on September 28, 2013* -
## physics

a .3kg mass moving on a horizontal, smooth incline has a speed of 5m/s and hits a spring with spring constant 3.0N/m. What is the maximum amount that the spring is compressed? I did Ei=PE + KE = Ef= PE =1/2mv(i)^2 + mgH = 1/2 k (y2-y1) =(1/2)(.3)^2 +

*asked by sarah on June 14, 2009* -
## Written Analysis

I would really appreciate help with a paper i'm having mental block with! The should be a paper on a topic that is hotly debated in American society and the article should be written by an author with an opposing view to my own. The article should include

*asked by keri on October 7, 2011* -
## Physics

The drawing shows a cross section of a plano-concave lens resting on a flat glass plate. (A plano-concave lens has one surface that is a plane and the other that is concave spherical.) The thickness t is 1.38 10-5 m. The lens is illuminated with

*asked by DCM on March 13, 2012* -
## Physics

A block of wood, with density 828 kg/m3 , has a cubic shape with sides 0.340 m long. A rope of negligible mass is used to tie a piece of lead to the bottom of the wood. The lead pulls the wood into the water until it is just completely covered with water.

*asked by Akbar on April 10, 2012* -
## Physics

A block of wood, with density 828 kg/m3 , has a cubic shape with sides 0.340 m long. A rope of negligible mass is used to tie a piece of lead to the bottom of the wood. The lead pulls the wood into the water until it is just completely covered with water.

*asked by Akbar on April 10, 2012* -
## Supportive Learning Environment

Schedules should contain both child-initiated and teacher-directed activities. Which of the following is most likely to be a child-initiated activity? A. A small group of children listening to a story read by the teacher before they eat lunch B. A child

*asked by Priscila on February 5, 2017* -
## Physics Please help

A block of wood, with density 828 kg/m3 , has a cubic shape with sides 0.340 m long. A rope of negligible mass is used to tie a piece of lead to the bottom of the wood. The lead pulls the wood into the water until it is just completely covered with water.

*asked by Akbar on April 10, 2012* -
## math

find the domain, range, y and x-intercept, vertical asymptote, maximum, minimum, one-to-one, and horizontal asymptote of: a. f(x)=x^2-6x+5 b. f(x)=x^2-6x+5 on domain [-1,6]

*asked by Joan on September 3, 2014* -
## Pre calc

Find an equation for the ellipse described center (0,0); major axis horizontal with length 18; length of minor axis is 4

*asked by Alexa on October 15, 2017* -
## Physics

When an object slides over a smooth horizontal surface, how does the force of friction depend on the force of gravity on the object?

*asked by Cyn on November 17, 2009* -
## physics

A ball thrown horizontally at vi = 26.0 m/s travels a horizontal distance of d = 51.0 m before hitting the ground. From what height h was the ball thrown?

*asked by Lani on November 22, 2017* -
## Math

Write the equation of a rational function in the form of 𝑓(𝑥) = 𝑎𝑥+𝑏/𝑐𝑥+𝑑 if the vertical asymptote is x =5, the horizontal asymptote is y=2, the x-intercept is (-1/2 , 0) and the y-intercept is (0,-1/5 ).

*asked by Squad on July 11, 2016* -
## physics

A horizontal rope is tied to a 90kg box on frictionless ice.What is the tension in the rope if the box is at rest?

*asked by Anonymous on November 4, 2013* -
## Science

as you push a lawn mower , the horizontal force is 300n, if you push the mower a distance of 500m, how much work do you do?

*asked by Madison on November 18, 2012* -
## physics

an object 12 kg of mass slides over a surface with horizontal force of 75 N. The friction force is of 17 N. Determine the acceleration of the object.

*asked by daniela on October 7, 2012* -
## Math quest 2

If a triangular sail has a vertical height of 83 ft. And horizontal length of 40 ft, what is the area of the sail? I got area : 3,320ft squared

*asked by Marco on February 19, 2013* -
## Physics

A rock is thrown off a cliff with a vertical speed of 53 m/s upward and a horizontal speed of 30 m/s. A) what will these speeds Vx and Vy be 4 second later? B) what will be the x and y displacements of the rock be 4 second later?

*asked by Sue on October 14, 2016* -
## Math - Domain and Asymptotes

Given the following rational function: f(x) = (x^2 + 6x - 8) / (x – 5) (a) state the domain. (b) find the vertical and horizontal asymptotes, if any. (c) find the oblique asymptotes, if any.

*asked by Greg - PV on June 9, 2011* -
## Physics

A track star in the long jump goes into the jump at 12 m/s and launches herself at 20.0° above the horizontal. How long is she in the air before returning to Earth? (g = 9.81 m/s2)

*asked by Sarah on October 6, 2013* -
## Physics

You whirl a 2.0 kg stone in a horizontal circle about your head. The rope attached to the stone is 1.5 m long. What is the tension in the rope?

*asked by Anonymous on October 5, 2010* -
## physics

A teacher is shot out of a cannon. He leaves the barrel at an angle of 25.0o to the ground with a velocity of 45.0 m/s. What is the teacher's horizontal velocity?

*asked by Timmy on October 18, 2011* -
## 9th grade math

Given the following functions f(x) and g(x), describe the changes (horizontal shifts, vertical shifts, etc.) to the graph of g(x) with respect to the graph of f(x). * 3 points f(x)=lxl g(x)= -lx+3l-2

*asked by naoh on November 15, 2017* -
## Physics

A ball thrown horizontally at 22.76 m/s travels a horizontal distance of 46.81 m before hitting the ground. From what height was the ball thrown?

*asked by Student on January 21, 2013* -
## math

A section of the railway has a slope of about 0.73. In this section, a vertical change of 1 unit corresponds to a horizontal change of what length?

*asked by Michelle on October 31, 2012* -
## Algebra

Find the slope of the line through the following pairs of points. (4,3) and (-5,3) equals to 0 Notice the y is constant, this is a horizontal line, zero slope.

*asked by Linda on May 20, 2007* -
## Physics

A 25.2-kg object is moving rightward across a horizontal surface with a speed of 14.3 m/s The coefficient of friction between the object and the surface is 0.490.

*asked by Steven on January 10, 2013* -
## trigonometry

From a ship, the angle of elevation of the top of the lighthouse is 30 45. What is the horizontal distance of the ship from the lighthouse is 42 meters tall?

*asked by Lester on February 22, 2016* -
## physics

A ball thrown horizontally at 27 m/s travels a horizontal distance of 51 m before hitting the ground. From what height was the ball thrown?

*asked by Haley on March 5, 2012* -
## physics

if a football kicked at ground level at 24.4 m/s at a 24 degree angle from horizontal. how long does it take for the football to hit the ground

*asked by quadlo on October 10, 2012* -
## physics

⦁ A ball thrown horizontally at 25 m/s travels a horizontal distance of 50 m before hitting the ground. From what height was the ball thrown?

*asked by chidera on September 15, 2014* -
## algebra

HYPERBOLA Q!! Find an equation for a horizontal hyperbola with vertices that are 20 units apart from each other and foci 30 units apart each other?? im lost on this any help is appreciated !!!

*asked by please help !!! on June 8, 2018* -
## Physics

A uniform steel beam of length 5.50 m has a weight of 4.50 103 N. One end of the beam is bolted to a vertical wall. The beam is held in a horizontal position by a cable attached between the other end of the beam and a point on the wall. The cable makes an

*asked by Student on October 9, 2007* -
## calculus

what is the vertical asymptote and horizontal asymptote of f(x) =1/4x^4-(3/2)x^(1/2)

*asked by joshua on October 26, 2011* -
## Writing

My question was one the It's better to think vertical then horizontal...So do we all want to think Vertical?

*asked by Brittany on February 4, 2008* -
## College Physics

A particle is moving in the xy plane with constant acceleration. At t=o, the particle is given by x=4m, y=3m, and has a velocity v=2m/s x-hat - 9m/s y-hat. The acceleration of the particle is given by a=4m/s^2 x-hat + 3m/s^2 y-hat. Find the velocity vector

*asked by Anonymous on September 15, 2010* -
## earth

if the tilt of the earth's axis was increased beyond 23.5 degrees, will it cause seasonal variation in the equator to decrease? if the earth's axis becomes perpendicular to the orbital plane between the earth and the sun will it increase the length of

*asked by claudia on March 18, 2008* -
## Physics

Three positive point charges are arranged in a triangular pattern in a plane as shown. + 2 nC + 4 nC + 6 nC Distance between all: 7 m I don't know how to d this part: Find the magnitude of the net electric force on the 4 nC charge. The Coulomb constant is

*asked by asd on May 1, 2015* -
## english II

MECHANICS (errors in the use of italics) A.Some etymologists claim that corduroy, the word with which we describe an humble textile, comes from the French corde du roi; or "cord of the king." B.The term extensor refers to a muscle that serves to straighten

*asked by Shaquitta on November 24, 2009* -
## Physics

A ball is hit from horizontal ground with velocity (10i+24.5j) ms-1 where the unit vectors i and j are horizontal and vertically upwards respectively. a)State two assumptions that you should make about the ball in order to make predictions about its

*asked by 0oooooooo0 on September 30, 2017* -
## Physics 11-Ray Diagrams

I'm doing a ray diagram with an arrow leaning away from a plane mirror. The rays leading from the tip of the arrow to the image on the other side of the mirror lined up perfectly, however for the rays leading from the end of the arrow I can't seem to line

*asked by Kayla on June 16, 2017* -
## Math

I'm really stuck on these STATS questions.Can someone please help! 1. The probability of a car in a population having faulty brakes is .05. If we take a sample of 150 cars, find the standard deviation of the sampling distribution. 2. The strength of ten

*asked by mysterychicken on June 20, 2013* -
## physics

A square, single-turn coil 0.20 m on a side is placed with its plane perpendicular to a constant magnetic field. And emf of 18mV is induced in the coil winding when the areas of the coil decreases at the rate of 0.10 m^2/s. What is the magnitude of the

*asked by harvey--PLS HELP!! :) on May 6, 2019* -
## MATH

im so stupid, uhh whats 1 plus 1 is it 11? I'm sorry--that was not me. I am trying to get some help understanding the problems. I am not stupid. 1 + 1 = 2 1 + 10 = 11 And I guess we could make a joke about 1 + 1 being 11 if we were so inclined. Someone

*asked by Tony on December 17, 2006* -
## Don't understand this Geometry question

Isosceles triangle XYZ is placed on a coordinate plane to be used for a coordinate proof. What should the coordinates of its vertices be? a. (-a,0), (0,0), (a,0) b. (0,0), (0,-a), (-a,0) c. (0,0), (0,a), (a,0) d. (0,0), (0,-a), (a,0) ??? 5 REASONS WHY

*asked by Ellie on August 28, 2006* -
## physics # 6

6. Which object listed below is not accelerating? a.) A person standing on the surface of the Earth. b.) A satellite in geostationary orbit. c.) A jet traveling at Mach 6.7 in a straight line. d.) A child standing on a merry-go-round. e.) A block

*asked by gomez on August 7, 2007* -
## Math

From an observation tower that overlooks a runway, the angles of depression of point A, on one side of the runway, and point B, on the opposite side of the runway are, 6 degrees and 13 degrees, respectively. The points and the tower are in the same

*asked by jasmine on July 21, 2013* -
## physics

a cannonball is fired with initial speed v0 at an angle 30 degrees above the horizontal from a height of 40m above the ground. the projetile strikes the ground with a speed of 1.2v0. find v0.

*asked by Angela on September 22, 2011* -
## Math

A football is kicked with an initial velocity of 42 ft/sec at an angle of 35 degrees with the horizontal. How far has the football traveled horizontally after 0.5 sec? round to nearest tenth. Could someone explain this please?

*asked by House on October 6, 2008* -
## physics

A mass of 8.10 kg is suspended from a 1.69 m long string. It revolves in a horizontal circle as shown in the figure. The tangential speed of the mass is 2.92 m/s. Calculate the angle between the string and the vertical.

*asked by Sarah on February 17, 2011* -
## Physics

During a training exercise a cannon ball is fired with a muzzle velocity of 84.9 m/s at an angle of 45o above the horizontal. Determine how far from the cannon the ball will land when it hits the ground.

*asked by Aria on June 23, 2012* -
## Physics

A 75.0 kg skier rides a 2870 m long lift to the top of a mountain. The lift makes an angle of 14.4° with the horizontal. What is the change in the skier's gravitational potential energy? J

*asked by Brandon on November 2, 2008* -
## HELP PHYSICS!! WORK

How much work is it to push a box (mass 190 kg) up an incline (angle 16 degrees with the horizontal) that is 8.3 meters long, if the coefficient of kinetic friction between the box and the incline is 0.6?

*asked by Emma on April 10, 2016* -
## Phyics

A pool ball leaves a 0.75-meter high table with an initial horizontal velocity of 30 m/s. Predict the time required for the pool ball to fall to the ground.

*asked by Alex on November 2, 2015* -
## physics HELP

A 60.0 kg skier rides a 2740 m long lift to the top of a mountain. The lift makes an angle of 14.7¡ã with the horizontal. What is the change in the skier's gravitational potential energy?

*asked by maria on January 25, 2011* -
## Physics

How much work is it to push a box (mass 120 kg) up an incline (angle 16 degrees with the horizontal) that is 9.6 meters long, if the coefficient of kinetic friction between the box and the incline is 0.5?

*asked by Sally on January 27, 2015* -
## physics

a 125Newton box is pulled east along a horizontal surface with a force of 60Newton acting at an angle of 42degrees. if the force of friction on the box is 15 newton, what is the acceleration?

*asked by jake on March 29, 2010* -
## physics

A 80.4-kg skier rides a 2630-m-long lift to the top of a mountain. The lift makes an angle of 19.4 ° with the horizontal. What is the change in the skier's gravitational potential energy?

*asked by luzy on July 8, 2013* -
## physic

A child swings a tennis ball attached to a 0.662-m string in a horizontal circle above his head at a rate of 4.50 rev/s. (a) What is the centripetal acceleration of the tennis ball? m/s2

*asked by joy on January 31, 2018* -
## physics

A ball is thrown horizontally at 15 m/s from a clifftop 70 m above the sea level. Find: a) the time to land; b) the angle at which it hits the water; ° below the horizontal c) the speed at which it hits the water. m/s

*asked by applebottom on October 9, 2010* -
## Physics

A skier is gliding along at 4.7m/s on horizontal, frictionless snow. He suddenly starts down a 10∘ incline. His speed at the bottom is 15m/s . What is the length of the incline? How long does it take him to reach the bottom?

*asked by Senu on September 27, 2013* -
## Physics

A ball rolls off a table moving 3.6m/s in the horizontal direction. The table is 1.2 meters high. Find the amount of time needed for the ball to hit the ground.

*asked by Laura on October 2, 2011* -
## physics

On his way off to college, Russell drags his bag 15.0 m from the door of his house to the car at a constant speed with a horizontal force of 95.0 N. How much work does Russell do to overcome the force of friction?

*asked by april on February 4, 2009* -
## physics 11

a water bomber flying with a horizontal speed of 85m/s at a height of 3000 m drops a load on a fire below. how far in front of the target fire should the load be released?

*asked by sumal on March 3, 2017*

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**157**- 158
- 159
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- 169
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- 172
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